강병욱 이승복 배귀남 임철수 나광삼 이학성 조민식 2024-01-20T19:03:39Z 2024-01-20T19:03:39Z 2021-09-06 2010-06 1598-7132 https://pubs.kist.re.kr/handle/201004/131367 The purpose of this study was to develop the PM2.5 source profiles for diesel and gasoline-powered vehicles,which contained mass abundances in terms of mass fraction of PM2.5 of chemical species. Seven diesel-powered vehicles and nine gasoline-powered vehicles were sampled from a chassis dynamometer exhaust dilution system. The species measured were water-soluble ions, elements, elemental carbon (EC), and organic carbon (OC). From this study, the large abundances of EC (54.5%), OC (26.0%), SO42- (1.5%), NO3- (0.8%), and S (0.6%) were observed from the diesel-powered vehicle exhaust showing that carbons were dominant species. The gasolinepowered vehicle exhaust emitted large abundances of OC (38.3%), EC (4.2%), SO42- (3.6%), NH4+ (3.5%), and NO3- (3.0%). The abundances of SO42-, NH4+, and NO3- from gasoline vehicle were greater than those of diesel vehicle. The emissions of P, S, Ca, Fe, and Zn among trace elements for the gasoline vehicle were greater than 1%of the PM2.5 mass unlike those for the diesel vehicle. Particularly, the fraction of Zn was five times higher from the gasoline vehicle than that from the diesel vehicle. The source profiles developed in this work were intensively examined by applying chemical mass balance model. Korean 한국대기환경학회 디젤 및 가솔린자동차 배출원의 구성물질 성분비 개발에 관한 연구 A Study on the Source Profile Development for Diesel and Gasoline-Powered Vehicles Article 2 한국대기환경학회지, v.26, no.3, pp.318 - 329 한국대기환경학회지 26 3 318 329 kci ART001461599 Source profiles PM2.5 Gasoline-powered vehicle Diesel-powered vehicle Chassis dynamometer